Over the past 10 years, one of the most significant developments in analytical measurements for the chemical and petrochemical industries has been the replacement of gas sensors that require extractive systems, by TDL analyzers. The appeal of TDLs relates to their ease of use, low maintenance, and particularly their in situ measurement (providing truly representative gas levels and a fast response). TDLs, therefore, come as a welcome alternative to high maintenance, slow responding technologies such as paramagnetic oxygen and non-dispersive infrared (NDIR).

As progress in TDL technology has continued, so has their range of uses. TDLs for measuring a growing array of gases are improving safety and efficiency in diverse applications across the process industries. As an example, carbon monoxide TDLs are being increasingly adopted in non-combustion processes where the measurement of CO is an important safety requirement.

In a new white paper, "Safety? Think Lasers!", METTLER TOLEDO explains the benefits of CO TDLs and describes their application in electrostatic precipitators, and in fire prevention during the production of carbon black.